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W-9S4E多功(gong)(gong)能(neng)電(dian)(dian)力儀(yi)表能(neng)夠高(gao)精度測量(liang)三相電(dian)(dian)網(wang)系統(tong)中所有(you)常(chang)用的電(dian)(dian)量(liang)參數(shu)(shu)：三相電(dian)(dian)壓、三相電(dian)(dian)流、有(you)功(gong)(gong)功(gong)(gong)率、無(wu)功(gong)(gong)功(gong)(gong)率、功(gong)(gong)率因數(shu)(shu)、電(dian)(dian)網(wang)頻率、有(you)功(gong)(gong)電(dian)(dian)能(neng)、無(wu)功(gong)(gong)電(dian)(dian)能(neng)，并(bing)帶有(you)通訊接口(kou)和(he)電(dian)(dian)能(neng)脈沖輸出功(gong)(gong)能(neng)。采用MODBUS-RTU通訊協議，實現(xian)LED/LCD現(xian)場顯示和(he)遠程(cheng)(cheng)(cheng)RS-485數(shu)(shu)字通訊。具(ju)有(you)安裝方便、接線簡單(dan)、維(wei)護便利、工程(cheng)(cheng)(cheng)量(liang)小、現(xian)場可編程(cheng)(cheng)(cheng)設置輸入參數(shu)(shu)等特點，并(bing)且能(neng)夠完成與業(ye)界(jie)不同(tong)PLC，工控計算機的組網(wang)通信。